4.0
(1)
7
hikers
08:11
28.7km
600m
Hiking
The CAI 817 Gessi Bolognesi Loop offers a challenging hiking experience through the unique geological formations of the Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park. You will navigate rugged terrain, encountering dramatic chalk outcrops and distinctive ravine formations. This difficult 17.8-mile (28.7 km) route involves a significant elevation gain of 1962 feet (598 metres), taking approximately 8 hours and 11 minutes to complete. Along the way, you can enjoy expansive views, including a clear vista of Bologna from the Gessi di Croara. The trail immerses you in unspoiled nature, showcasing spectacular gullies and sinkholes.
When planning your hike on the CAI 817 Gessi Bolognesi Loop, be prepared for potentially muddy and slippery paths, especially if there has been recent rain. Good hiking boots are essential for this terrain, and trekking poles can provide helpful stability on steeper sections. Parking is generally available near the start point of the trail; however, it is always wise to check local signage for any specific restrictions or changes. Consider starting early to allow ample time to complete the full route before dusk.
This trail stands out for its journey through a landscape profoundly shaped by geological processes. The Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park is renowned for its distinctive chalk (gessi) and ravine (calanchi) formations, which create a truly unique environment. You will witness the powerful effects of erosion and natural forces that have sculpted the land over millennia. The route offers a deep dive into the natural history and geological wonders of the region, making it a memorable experience for those interested in earth sciences and dramatic scenery.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Bus stop
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750 m
Highlight • Trail
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1.74 km
Highlight • Bridge
3.96 km
Highlight • Cave
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4.17 km
Highlight • Cave
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4.43 km
Highlight • Viewpoint
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4.87 km
Highlight • Religious Site
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5.74 km
Highlight • Natural Monument
7.39 km
Santi Giovanni Battista e Mamante di Monte Calvo
Place Of Worship
8.20 km
Highlight • Natural Monument
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8.58 km
Highlight • Viewpoint
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14.9 km
Highlight • Viewpoint
18.3 km
Gessi Bolognesi, Calanchi dell'Abbadessa
Nature Reserve
28.7 km
End point
Bus stop
Way Types & Surfaces
Way Types
12.0 km
7.51 km
4.09 km
3.84 km
1.16 km
< 100 m
Surfaces
13.9 km
4.49 km
3.95 km
3.36 km
2.59 km
244 m
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Elevation
Highest point (330 m)
Lowest point (70 m)
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Weather
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Thursday 16 July
34°C
22°C
0 %
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Max wind speed: 11.0 km/h
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This route was planned by komoot.
The CAI 817 Gessi Bolognesi Loop is a challenging hike that typically takes around 8 hours and 11 minutes to complete. This duration can vary based on your pace, breaks, and weather conditions.
The terrain on this loop is varied, featuring the unique geological formations of the Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park. You'll encounter chalk (gessi) outcrops, karst phenomena, and distinctive ravine (calanchi) formations. Some sections can be rugged with steep inclines, especially in the Calanchi dell'Abbadessa region. There are also shaded woods, but paths may become muddy and slippery after rain, so sturdy hiking boots are recommended.
The route offers several notable sights. You'll pass along the Path Along the Savena River and cross a Bridge Over the Savena River. Geological highlights include the Buca dei Vinchi Cave, the Candle Pit, and the dramatic Cliffs and Calanchi dell'Abbadessa. You can also enjoy stunning vistas from the View of Bologna from Gessi di Croara, View of the Vineyards in Gessi Bolognesi, Calanchi dell'Abbadessa, and another View of Bologna. The Oratory of Our Lady of the Woods also lies along the way.
The Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park is particularly beautiful in spring, with blossoming flora, and in autumn, when the foliage displays vibrant colors. While accessible year-round, certain sections can be challenging after rain due to mud and slippery conditions. Summer can be hot, so an early start is advisable.
Generally, dogs are allowed on trails within the Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park, but they should be kept on a leash to protect wildlife and ensure the safety of other hikers. Always check local park regulations for any specific restrictions or sensitive areas.
The Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park typically does not require entrance fees or permits for day hiking on its trails. However, it's always a good idea to check the official park website or visitor center for the most current information on regulations, especially for larger groups or specific activities.
Specific parking information for the CAI 817 Gessi Bolognesi Loop is not provided in the available data. However, as the trail is located within the Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park, you would typically look for designated parking areas near trailheads or visitor centers within the park. It's advisable to research specific starting points and parking options before your visit.
Yes, the route intersects with several other official trails. Notably, it covers a significant portion of the Percorso CAI 817 (74%) and also passes through sections of Il Cammino di Sant'Antonio: Tappa 9 (42%), Ciclovia dei Gessi di Gaibola (32%), and Percorso CAI 801 (15%), among others.
Given its distance of nearly 29 km and an elevation gain of almost 600 meters, this loop is rated as 'difficult'. While the Gessi Bolognesi park offers trails for various skill levels, this specific route is generally not recommended for beginners or young children due to its length and challenging sections. Good physical preparation is advised.
The park is renowned for its unique geological formations, being the largest karst park in Emilia-Romagna and part of the UNESCO World Heritage Site 'Vena del Gesso Romagnola'. You'll witness spectacular chalk (gessi) outcrops, numerous caves (over 150), dramatic gullies (calanchi), and sinkholes. The landscape is a testament to the powerful forces of erosion on gypsum rock.
While specific public transport routes directly to the CAI 817 trailhead are not detailed, the Gessi Bolognesi e Calanchi dell'Abbadessa Regional Park is located a few kilometers from Bologna. Public transport options from Bologna to areas bordering the park may be available, but further local research would be needed to plan your journey to a specific trailhead.
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